Safety attachment for gas valves



March 18, 1930. E. KRAusE SAFETY ATTACHMENT FOR GAS VALVES Filed April5, 1928 *PEEEE 11v VENTOR BY I EKmupe ATTORNEY Patented Mar. 18 1930UNITED STATES ERICK KRAUSE, OF sou'rn JAMAICAgNEWYORK SAFETY ATTACHMENTFOBLG-AS VALVES Application filed April 3,

The main object of this invention is to provide an attachment to be usedupon gas ranges, ovens, or the like where gas valves are to bemanipulated. It is the purpose to provide such a device which willprevent the accidental asphyxiation of persons quartered in rooms when aliquid being heated boils over and extinguishes the flame of the gasburner.

Another object of the invention is to provide an attachment used incombination with a range or oven which closes a valve immediately aftera liquid which is being boiled by the apparatus extinguishes the flame.

The above and other objects will become apparent in the descriptionbelow in which characters of reference refer to like-named parts in thedrawing.

Referring briefly to the drawing:

Figure 1, is a longitudinal sectional elevational view thru one cornerof a gas range showing the application of the valve closing mechanism.

Figure 2, is a top plan View of Figure 1.

Figure 3, is a fragmentary sectional elevational view showing the balltripping the valve actuating plunger.

Referring in detail to the drawing the numeral 10 indicates a pipe linewhich feeds one or a plurality of gas burners 11 which latter are incommunication with the pipe line thru branch outlets 12. This pipe line10, is connected to a source of illuminating gas supply by a nipple 13,along the length of which is mounted a valve body 14, in

which is a valve having a square extending shank 15. The square shank 15has a bell crank mounted thereon. One arm 16 of the bell crank extendsupwardly at an angle when the valve is in open position and has afi'exible connection 17 secured thereto. The opposite arm 18 of the bellcrank has a finger ring 19 formed at its extremity. Beneath the burnermembers 11 and the pipe line 10, a declining platform 20, is mountedbetween the walls 21, of the gas range, one of said walls being shown inFigure 1. This platform has an opening 22 therein toward which thesurfaces of the platform decline so that any liquids falling on saidplatform will cylinder 23 is mounted.

192's. sem s-6.28 683 trickle down and pass thru the opening. Adjacentto opening 22 the upper end of a This cylinder hangs suspended from thelower surface of the platform to which it is attached and uses a ulongitudinal plunger 24. The upper end of this plunger has an, extensionthereon to which is secured the lower suspended end of "the flexibleconnection 17. A coil-spring 25 seats on the upper face of the plungerand is positioned'between same and the platfo'rmf20,

'andis adapted to be in compressed condition when said plunger assumesits uppermost.

position, as indicated in Figure 1. The wall of the cylinder 23, hasalongitudinal slo't 26 F therein in which a relatively small lever 27 ismovable. This lever is fulcrumed intermediate its length and its upperend is adapted to jut into the confines of the cylinder so that thelower face of the plunger "24 I may seat thereon. The lower end of thelever 27 is formed into an ou'twardlycurv'e'd projection 28 and isadapted to project into a chute '29 at an enlarged portion. This chuteextends vertically upward and at its upper end a declining S-curvedrun-way '30 is formed.

Beneath the platform 20 is member 31,

'which forms a floor for the va'lve actuated mechanism. This floorsupports a triangular block 32, whose apex is located at its extreme PPblock 32-and is retained in located position by forming a notch 34: inthe bar. At one end the bar has a threaded extension 35 formed unitarywith the bar, which has engaged thereon an adjustable weight 36 which isadapted to compensate for the variability of weight of a ball 37 Theball of relatively heavy material, is seated in a cup-shape reer end. Abar is balanced upon the v r a leversecured to a valve, 'a'weightsuspended from said lever, said weight adapted to drop and rotate saidlever to close said valve,

means for latching said weight in raised po sition to retain said valveleverin open position, a platform above said weight, an

- opening in said platform adapted to drain boiled over liquid, a ball,and normally bal- V anced means supporting said ball, saidball beingadapted to trip said latching means V and" release saidweight whensaidbalanced means is over-balanced. 1 V

2. A device for closing a valve comprising 7 a lever secured to a valve,a weight suspended from said lever, a latching-lever pivoted beneathsaid weight, a projection on said lever,

said lever engaging said weightto retain the V lattervin raisedposition, a platform, a normally balanced ar beneath said platform, andmeans adapted to roll from said balanced bar and trip said latchinglever when said bar is over-balanced. v

v 3. A device for closing a valve comprising a lever secured to a valve,a weight suspended from said lever, a lever pivotedbeneath said weight,a projection on saidlever,

. said'leverengaging said weight to retain the latter in raisedposition, a platform, a normally balanced bar beneath said platform, aweighted ball normally seated on one end of said bar when the latter isin balanced position, -a runway beneath said bar, said bar whenover-balanced being adapted to unseat said weighted ball to cause thelatter to fall upon said runway and trip the last-named lever to releasesaid lever rom engagement with said Weight, and means for accumulatingthe drippings from said platform to over-balance said bar, a containermounted on said bar, said container being immediately below the openinginsaid platform, said container when receiving drippings from saidopening being adapted to over-balance said bar and unseat said weightedball to trip'and release said weight suspended from said firstnamedlever.

v r In testimony whereof I aifix signature.

ERIOH KRAUSE.

